<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>


        let students = [
            {
                uname: '小明',
                age: 18,
                gender: '男',
                hometown: '河北省',
            },
            {
                uname: '小红',
                age: 19,
                gender: '女',
                hometown: '河南省',
            },
            {
                uname: '小刚',
                age: 17,
                gender: '男',
                hometown: '山西省',
            },
            {
                uname: '小丽',
                age: 18,
                gender: '女',
                hometown: '江西省',
            }
        ]
        for (let k in students) {
            console.log(k);
            console.log(students[k]);
           
        }
    </script>
</body>

</html>